After having the Problem and reading everywhere in all forums, and even calling you to get an answer for my problem, i decided to write here MAY BE it will help!!!

I have the same Problem, i had last week i do not know what i did wrong or new not to make the TIR4 does not work??

I will try to say to you "in short" all what i got/did in the last few days

I had a virus on my PC, then i did buy a new Norton internet Security 2009 software and installed it on my PC since then it did not work (TIR4).. i thought in the beginning that it has a conflict with this Norton Software i did Deinstall it (the Norton) and tried again.. still it did not work!!!

I have had the same problem, my track IR just stopped working i tried it on another pc and it get the same error, "USB device not recognised" and the reason it gives is that the device has malfunctioned.

i bought my unit from Skysim.co.uk, they are authorized dealers but i think there support email is down and i cant seem to contact them please tell me how i can use the warranty.